Moritz P Herle, Carol Kan, Kaushalya Jayaweera, Anushka Adikari, Sisira Siribaddana, Helena M S Zavos, Milana Smolkina, Athula Sumathipala, Clare Llewellyn, Khalida Ismail, Matthew Hotopf, Janet Treasure, Frühling Rijsdijk
{"title":"The association between emotional eating and depressive symptoms: a population-based twin study in Sri Lanka.","authors":"Moritz P Herle, Carol Kan, Kaushalya Jayaweera, Anushka Adikari, Sisira Siribaddana, Helena M S Zavos, Milana Smolkina, Athula Sumathipala, Clare Llewellyn, Khalida Ismail, Matthew Hotopf, Janet Treasure, Frühling Rijsdijk","doi":"10.1017/gheg.2019.3","DOIUrl":null,"url":null,"abstract":"<p><p>This study investigated the genetic and environmental contributions to emotional overeating (EOE) and depressive symptoms, and their covariation, in a Sri-Lankan population, using genetic model-fitting analysis. In total, 3957 twins and singletons in the Colombo Twin and Singleton Study-Phase 2 rated their EOE behaviour and depressive symptoms, which were significantly associated (men: <i>r</i> = 0.11, 95% confidence interval (CI) 0.06-0.16, women: <i>r</i> = 0.12, 95% CI 0.07-0.16). Non-shared environmental factors explained the majority of variance in men (EOE <i>e</i><sup>2</sup> = 87%, 95% CI 78-95%; depressive symptoms <i>e</i><sup>2</sup> = 72%, 95% CI 61-83%) and women (EOE <i>e</i><sup>2</sup> = 76%, 95% CI 68-83%; depressive symptoms <i>e</i><sup>2</sup> = 64%, 95% CI 55-74%). Genetic factors were more important for EOE in women (<i>h</i><sup>2</sup> = 21%, 95% CI 4-32%) than men (<i>h</i><sup>2</sup> = 9%, 95% CI 0-20%). Shared-environmental factors were more important for depressive symptoms in men (<i>c</i><sup>2</sup> = 25%, 95% CI 10-36%) than women (<i>c</i><sup>2</sup> = 9%, 95% CI 0-35%). Non-shared environmental factors explained the overlap between depressive symptoms and EOE in women but not in men. Results differed from high-income populations, highlighting the need for behavioural genetic research in global populations.</p>","PeriodicalId":44052,"journal":{"name":"Global Health Epidemiology and Genomics","volume":"4 ","pages":"e4"},"PeriodicalIF":1.1000,"publicationDate":"2019-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1017/gheg.2019.3","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Global Health Epidemiology and Genomics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1017/gheg.2019.3","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2019/1/1 0:00:00","PubModel":"eCollection","JCR":"Q4","JCRName":"PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH","Score":null,"Total":0}
引用次数: 5
Abstract
This study investigated the genetic and environmental contributions to emotional overeating (EOE) and depressive symptoms, and their covariation, in a Sri-Lankan population, using genetic model-fitting analysis. In total, 3957 twins and singletons in the Colombo Twin and Singleton Study-Phase 2 rated their EOE behaviour and depressive symptoms, which were significantly associated (men: r = 0.11, 95% confidence interval (CI) 0.06-0.16, women: r = 0.12, 95% CI 0.07-0.16). Non-shared environmental factors explained the majority of variance in men (EOE e2 = 87%, 95% CI 78-95%; depressive symptoms e2 = 72%, 95% CI 61-83%) and women (EOE e2 = 76%, 95% CI 68-83%; depressive symptoms e2 = 64%, 95% CI 55-74%). Genetic factors were more important for EOE in women (h2 = 21%, 95% CI 4-32%) than men (h2 = 9%, 95% CI 0-20%). Shared-environmental factors were more important for depressive symptoms in men (c2 = 25%, 95% CI 10-36%) than women (c2 = 9%, 95% CI 0-35%). Non-shared environmental factors explained the overlap between depressive symptoms and EOE in women but not in men. Results differed from high-income populations, highlighting the need for behavioural genetic research in global populations.